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Ice Melting Performance of Solar-Assisted Cold Water Phase-Change Energy Heat Pump System

Author

Listed:
  • Yujuan Yang

    (College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266000, China)

  • Ronghua Wu

    (College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266000, China)

  • Yuanbo Yue

    (Qingdao Kechuang Blue New Energy Co., Ltd., Qingdao 266000, China)

Abstract

The solar-assisted cold water phase-change energy heat pump system is a clean energy heating system which can effectively reduce the ice melting energy consumption of the cold-water phase-change energy heat pump system. In this paper, the operation mode of the solar-assisted cold-water phase-change energy heat pump system is given, three new ice melting methods are proposed, the performance of three ice melting modes using solar energy for thermal ice melting are simulated, and the influence of ice thickness on system operation is analyzed. The results show that among the three ice melting modes, the affected serial dual-source heat pump mode has the largest system COP, and the pure serial dual-source heat pump mode has the smallest annual total cost. Among the solar collector price, glycol price and electricity price, the change in solar collector price has the greatest impact on the total annual cost, and the change in glycol price has the least impact on the total annual cost. When the ice thickness exceeds 8 mm, the increase in the space heating of the solar-assisted cold water phase-change energy heat pump system becomes smaller, and the increase in heat consumption of ice melting becomes larger. The solar-assisted cold-water phase-change energy heat pump system can simultaneously melt ice and heat, and its economic benefits are significant, with good application and promotion value.

Suggested Citation

  • Yujuan Yang & Ronghua Wu & Yuanbo Yue, 2022. "Ice Melting Performance of Solar-Assisted Cold Water Phase-Change Energy Heat Pump System," Energies, MDPI, vol. 15(16), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:16:p:5905-:d:888399
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    Cited by:

    1. Yujuan Yang & Ronghua Wu & Yuanbo Yue & Yao Zhang & Yuanyuan Sun & Shunjie Liu, 2023. "Heating Performance and Economic Analysis of Solar-Assisted Cold-Water Phase-Change-Energy Heat Pump System in Series and Parallel Connections," Energies, MDPI, vol. 16(16), pages 1-21, August.

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